210091012 has 24 divisors (see below), whose sum is σ = 371356160. Its totient is φ = 103995360.

The previous prime is 210090989. The next prime is 210091019. The reversal of 210091012 is 210190012.

It is not an unprimeable number, because it can be changed into a prime (210091019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192733 + ... + 193819.

Almost surely, 2^210091012 is an apocalyptic number.

It is an amenable number.

210091012 is a deficient number, since it is larger than the sum of its proper divisors (161265148).

210091012 is a wasteful number, since it uses less digits than its factorization.

210091012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531 (or 1529 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 210091012 is about 14494.5166183630. The cubic root of 210091012 is about 594.4780508467.

The spelling of 210091012 in words is "two hundred ten million, ninety-one thousand, twelve".